| Title |
Characterization of a Direct Sample Analysis (DSA) Ambient Ionization Source
|
|---|---|
| Published in |
Journal of the American Society for Mass Spectrometry, June 2015
|
| DOI | 10.1007/s13361-015-1175-1 |
| Pubmed ID | |
| Authors |
Gregory T. Winter, Joshua A. Wilhide, William R. LaCourse |
| Abstract |
Water cluster ion intensity and distribution is affected by source conditions in direct sample analysis (DSA) ionization. Parameters investigated in this paper include source nozzle diameter, gas flow rate, and source positions relative to the mass spectrometer inlet. Schlieren photography was used to image the gas flow profile exiting the nozzle. Smaller nozzle diameters and higher flow rates produced clusters of the type [H + (H2O)n](+) with greater n and higher intensity than larger nozzles and lower gas flow rates. At high gas flow rates, the gas flow profile widened compared with the original nozzle diameter. At lower flow rates, the amount of expansion was reduced, which suggests that lowering the flow rate may allow for improvements in sampling spatial resolution. Graphical Abstract ᅟ. |
X Demographics
The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 9 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 9 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 3 | 33% |
| Other | 2 | 22% |
| Student > Ph. D. Student | 2 | 22% |
| Unknown | 2 | 22% |
| Readers by discipline | Count | As % |
|---|---|---|
| Chemistry | 4 | 44% |
| Pharmacology, Toxicology and Pharmaceutical Science | 2 | 22% |
| Medicine and Dentistry | 1 | 11% |
| Unknown | 2 | 22% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 16 July 2015.
All research outputs
#17,285,036
of 25,371,288 outputs
Outputs from Journal of the American Society for Mass Spectrometry
#2,721
of 3,833 outputs
Outputs of similar age
#165,858
of 278,557 outputs
Outputs of similar age from Journal of the American Society for Mass Spectrometry
#19
of 33 outputs
Altmetric has tracked 25,371,288 research outputs across all sources so far. This one is in the 21st percentile – i.e., 21% of other outputs scored the same or lower than it.
So far Altmetric has tracked 3,833 research outputs from this source. They receive a mean Attention Score of 3.8. This one is in the 23rd percentile – i.e., 23% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 278,557 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 31st percentile – i.e., 31% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 33 others from the same source and published within six weeks on either side of this one. This one is in the 39th percentile – i.e., 39% of its contemporaries scored the same or lower than it.